84436479 has 16 divisors (see below), whose sum is σ = 128473440. Its totient is φ = 54768960.

The previous prime is 84436453. The next prime is 84436489. The reversal of 84436479 is 97463448.

It is not a de Polignac number, because 84436479 - 2⁷ = 84436351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84436409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41262 + ... + 43259.

It is an arithmetic number, because the mean of its divisors is an integer number (8029590).

Almost surely, 2^84436479 is an apocalyptic number.

84436479 is a deficient number, since it is larger than the sum of its proper divisors (44036961).

84436479 is a wasteful number, since it uses less digits than its factorization.

84436479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84567 (or 84561 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 84436479 is about 9188.9324189484. The cubic root of 84436479 is about 438.7091626832.

The spelling of 84436479 in words is "eighty-four million, four hundred thirty-six thousand, four hundred seventy-nine".